Question

1.
What do you understand waste water​

Answer 1

Answer:

Wastewater is "used water from any combination of domestic, industrial, commercial or agricultural activities, surface runoff or stormwater, and any sewer inflow or sewer infiltration". ... Wastewater can contain physical, chemical and biological pollutants.

Explanation:

Answer 2

Waste water is the blackish -brown oily and lathery water that goes down the drain from basins,showers etc. Wastewater cannot be used for drinking, cooking,bathing etc

Waste water contains many impurities and pollutants such as vegetable and fruit waste,Oil,Pesticides etc